Excerpt: One of the more popular options in today’s higher-priced vehicles is the onboard navigation system. These clever devices use satellite global positioning technology to pinpoint your location and calculate step-by-step directions to any address in North America.

Excerpt: Once regarded as a novelty, mobile navigation systems are becoming more prevalent in luxury cars, high-end minivans and SUVs. Consumers appreciate their great utility, but the price for factory systems is still high.

Excerpt: The smartphone is today’s go-to device for one-touch access to multimedia, contacts, information, entertainment and directions. Ironically, and in spite of how rapidly the benefits of advanced connectivity are becoming a part of the modern motoring experience, that Blackberry, iPhone or Android is...